drm/amd/display: make virtual_disable_link_output static

It's not used outside of virtual_link_hwss.c.  Fixes
a -Wmissing-prototypes warning.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.c b/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.c
index 9522fe0..4f7f991 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.c
+++ b/drivers/gpu/drm/amd/display/dc/virtual/virtual_link_hwss.c
@@ -37,7 +37,7 @@ void virtual_reset_stream_encoder(struct pipe_ctx *pipe_ctx)
 {
 }
 
-void virtual_disable_link_output(struct dc_link *link,
+static void virtual_disable_link_output(struct dc_link *link,
        const struct link_resource *link_res,
        enum signal_type signal)
 {